MySQL Error number: MY-013909; Symbol: ER_BINLOG_CRASH_RECOVERY_MALFORMED_LOG; SQLSTATE: HY000

文档解释

Error number: MY-013909; Symbol: ER_BINLOG_CRASH_RECOVERY_MALFORMED_LOG; SQLSTATE: HY000

Message: Found invalid event sequence while recovering from binary log file ‘%s’, between positions %llu and %llu: %s. The recovery process was stopped early and no transaction was recovered. Side effects may be transactions in an inconsistent state between the binary log and the storage engines, or transactions kept by storage engines in a prepared state (possibly holding locks). Either fix the issues with the binary log or, to release possibly acquired locks, disable the binary log during server recovery. Note that disabling the binary log may lead to loss of transactions that were already acknowledged as successful to client connections and may have been replicated to other servers in the topology.

错误ER_BINLOG_CRASH_RECOVERY_MALFORMED_LOG表示MySQL在尝试重新恢复数据时遇到了一个负面的情况。它的MySQL的错误码是MY-013909,SQLSTATE是HY000。

错误消息是:“无法在日志文件’%s’上检测到binlog格式,或者日志文件存在损坏”。

此错误消息意味着MySQL无法识别要恢复数据所在binlog文件的格式。这意味着binlog文件可能有错误,并且无法由MySQL解码和恢复。

此消息通常是由于文件系统故障、机器重新启动和文件名更改等原因引起的。这些原因会影响binlog文件,使得文件不可用且无法恢复到原来的状态。

此错误消息也可能是由于机器重新启动或者断电导致的数据库写满,以及由写满导致的数据库安全中断而引起的,另外还可能是由MySQL自己的错误引起的。

解决此错误的方法有三:

1. 在服务器上首先检查binlog文件。如果您发现它们有缺陷,则应立即删除它们,然后从备份中恢复最新的binlog文件,并将其复制到MySQL数据目录中。

2. 确保MySQL不会由于机器重新启动或断电而影响binlog文件,可以通过在MySQL配置文件中设置参数“innodb_flush_log_at_timeout”为0来实现,这样就可以确保日志文件的安全写入,也可以防止日志文件被覆盖。

3. 最好使用MySQL提供的binlog文件检查功能,可以使用“mysqlbinlog -v –start-position=0 –verify-binlog-checksum=1 ”命令进行验证,并指定–start-position=0来确保检查binlog文件的完整性。

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